Question

The length of a metallic I've is 70cm, inner diameter is 10cm and thickness is 5mm. If density of metal used is 8g/cubic CM, then find mass of the pipe.

Answer 1

Answer:

Mass is 53240 g

Step-by-step explanation:

Length=70cm

Inner diameter=10cm

Inner radius=5cm

Thickness=5mm=0.5cm

Outer radius=inner radius+thickness=5.5cm

Volume of cylinder= π(outer radius)(height)

=22/7*5.5*5.5*70=6650 cm^3

Density=mass/volume

Density*volume=mass

8*6650=mass

Therefore mass = 53240 g

Answer 2

Answer:

53240g

Step-by-step explanation:

Length= 70 cm

inner diameter= 10 cm

inner radius= 5cm

thickness=5mm=0.5cm

outer radius= inner radius + thickness

volume of cilender= π(outer radius)(height)

=22/7*5.5*70= 6650cm∧3

Density= mass / voiume

density*volume=mass

8*6650= mass

=53240g